'Servant' in the Bible

A son honoreth his father, and a servant his master: if then I am a father, where is mine honor? and if I am a master, where is my fear? saith Jehovah of hosts unto you, O priests, that despise my name. And ye say, Wherein have we despised thy name?

See, I am sending my servant, and he will make ready the way before me; and the Lord, whom you are looking for, will suddenly come to his Temple; and the angel of the agreement, in whom you have delight, see, he is coming, says the Lord of armies.

And I will come near to you for judging; I will quickly be a witness against the wonder-workers, against those who have been untrue in married life, against those who take false oaths; against those who keep back from the servant his payment, and who are hard on the widow and the child without a father, who do not give his rights to the man from a strange country, and have no fear of me, says the Lord of armies.